Admission Eosinopenia Predicts Increased Hospital Resource Use in Community-Acquired Pneumonia: Insights from a Prospective Multicenter Study

Highlight

• Lower admission eosinophil counts correlate with increased ICU admissions and mechanical ventilation in community-acquired pneumonia (CAP) patients.
• An eosinophil count threshold of ≤10 cells/μL effectively stratifies patients at higher risk for greater hospital resource use.
• Eosinopenia at admission also associates with longer hospital length of stay, independent of systemic glucocorticoid treatment.
• Admission eosinophil count may serve as an accessible biomarker to guide healthcare resource allocation in CAP management.

Study Background